... Competitive price 3.Short deliver time 4.High quality Battery Capacity Checker , Cell meter For NiCd NiMH , Li- ... on-board alarm, so you can hear the low voltage alarm during flight.Specifications 1.Use for ... 1s test mode voltage range: 3.7-30V6.Low voltage alarm mode for 2-8S7.Alarm set ... 3.8V8. Weight : 8.7g/ 0.31ozPicturesFoctory pictures Battery Capacity Checker , Cell meter For NiCd NiMH , Li-Po , ...